System for Rapid Analysis of Ionospheric Dynamics Based on GNSS TEC Signals

System for Rapid Analysis of Ionospheric Dynamics based on GNSS TEC Signals (S-RAID) performs downloading, parsing, and processing of Global Navigation Satellite System (GNSS) signal measurements and their geometry of observations, calculation of slant and vertical total electron contents (sTEC and vTEC) and subsequent visualization for selected band-passes of fluctuations with periods shorter than two hours. In a routine operation, the System processes 15/30 sec GNSS signal measurements over Continental United States (CONUS) from ~2700 stations. Raw GNSS signal measurements are collected from public archives, including The Crustal Dynamics Data Information System (CDDIS), EarthScope/UNAVCO, National Oceanic and Atmospheric Administration (NOAA), and Scripps Institution of Oceanography's Orbit and Permanent Array Center (SOPAC). The System is oriented towards rapid access to GNSS sTEC/vTEC data for the investigation of traveling ionospheric disturbances (TIDs) of various nature, from large scale TIDs to irregularities of ~10s of km and minutes of periods, in particular those driven by atmospheric acoustic and gravity wave dynamics. The details of data processing methodology are provided in the manuscript (1).

Currently, this archive provides an access to high-resolution visualization of processed vTEC mapped over CONUS for years 01/2017-12/2025 (Version 3 to the left - includes full archive).

The structure of the archive:
/YYYY/MM/DD/animation.mp4, where YYYY - year, MM - month, DD - day of month, animation.mp4 - temporally evolving visualization of processed vTEC (see Steps to Reproduce for the details of data processing methodology).

To reference the archive or the methodology for data processing, we suggest to:
(1) Cite the manuscript: Inchin, P. A., Deshpande, K. B., Egan, S., Lay, E. H., Obenberger, K. S., Zettergren, M. D., & Snively, J. B. (2025). Ionospheric disturbances in GNSS TEC data: SpaceX Falcon 9 deorbit maneuvers over CONUS in April–May 2024. Geophysical Research Letters, 52, e2024GL112364. https://doi.org/10.1029/2024GL112364
(2) Cite this archive by its DOI: 10.17632/jbx98yscmd.1, and/or

Being processed in an automated regime, the visualizations may contain errors and bugs and thus should be used with caution as is. If you encounter any issues or wish to obtain data for animation replication, contact P.A. Inchin [e-mail], J.B. Snively [e-mail] or M.D. Zettergren [e-mail].

Research is supported by DARPA Cooperative Agreement HR00112120003. This work is approved for public release; distribution is unlimited. The content of the information does not necessarily reflect the position or the policy of the Government, and no official endorsement should be inferred.